The new hollow carbon crank is produced by stick method and complements our “Smart Foot” aluminum. Stick method allows the carbon fibers oriented forces to organize. This results in an extremely high STW-value at the lowest possible use of materials. Weight (including crank shaft, XX1-star, Locknuts and lockring.): Approx 360g. Of course, the new crank also includes our proven “Smart Spindle System”, which covered almost all the crank bottom bracket standards, hole circles and chainring sizes